JPS5422132B2 - - Google Patents

Info

Publication number
JPS5422132B2
JPS5422132B2 JP6808574A JP6808574A JPS5422132B2 JP S5422132 B2 JPS5422132 B2 JP S5422132B2 JP 6808574 A JP6808574 A JP 6808574A JP 6808574 A JP6808574 A JP 6808574A JP S5422132 B2 JPS5422132 B2 JP S5422132B2
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP6808574A
Other languages
Japanese (ja)
Other versions
JPS50161319A (fr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP6808574A priority Critical patent/JPS5422132B2/ja
Priority to US05/587,327 priority patent/US4017451A/en
Publication of JPS50161319A publication Critical patent/JPS50161319A/ja
Publication of JPS5422132B2 publication Critical patent/JPS5422132B2/ja
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • C08L63/04—Epoxynovolacs
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
JP6808574A 1974-06-17 1974-06-17 Expired JPS5422132B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6808574A JPS5422132B2 (fr) 1974-06-17 1974-06-17
US05/587,327 US4017451A (en) 1974-06-17 1975-06-16 Pencil lead and manufacturing method of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6808574A JPS5422132B2 (fr) 1974-06-17 1974-06-17

Publications (2)

Publication Number Publication Date
JPS50161319A JPS50161319A (fr) 1975-12-27
JPS5422132B2 true JPS5422132B2 (fr) 1979-08-04

Family

ID=13363539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6808574A Expired JPS5422132B2 (fr) 1974-06-17 1974-06-17

Country Status (2)

Country Link
US (1) US4017451A (fr)
JP (1) JPS5422132B2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4382819A (en) * 1979-12-11 1983-05-10 Theodor Berghofer Drawing and coloring element in form of blackboard-chalk-like stick for producing pictures that can be fixed through application of heat
US4298507A (en) * 1980-03-11 1981-11-03 Leon Roque O L Flexible marking composition for pencils
US4371632A (en) * 1981-04-24 1983-02-01 Empire Enterprises, Inc. Compositions, processes, and writing elements employing resins of the thermosetting type
DE3706977A1 (de) * 1987-03-04 1988-09-22 Buchtal Gmbh Verfahren zur herstellung von blei- und farbstiften
JP2641810B2 (ja) * 1991-05-02 1997-08-20 三菱鉛筆株式会社 非焼成色鉛筆芯とその製造方法
US5531947A (en) * 1992-09-15 1996-07-02 Bellaform Extrusionstechnik Gmbh Process and installation for the manufacture of pencils
JPH08259874A (ja) * 1995-03-27 1996-10-08 Mitsubishi Pencil Co Ltd 焼成色鉛筆芯及びその製造方法
US6011084A (en) 1998-06-26 2000-01-04 Binney & Smith Inc. Erasable colored pencil lead
MXPA00011333A (es) 1998-06-26 2003-05-19 Binney & Smith Inc Mina para lapiz de color que se puede borrar.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4855017A (fr) * 1971-11-13 1973-08-02

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953218A (en) * 1971-03-31 1976-04-27 Pms Consolidated Pigment dispersion
US3821157A (en) * 1971-05-27 1974-06-28 Bayer Ag Thermoplastic binders for continuously produced leads for pencils,copying pencils and coloured pencils
CA972908A (en) * 1971-08-19 1975-08-19 Etsuo Shinkawa Black lead and production thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4855017A (fr) * 1971-11-13 1973-08-02

Also Published As

Publication number Publication date
JPS50161319A (fr) 1975-12-27
US4017451A (en) 1977-04-12

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